[FIX][16.0] commissions: Tweak commission permissions

[Shide]

This PR involves several modules in order to have a consistent state across all commission modules.

The goal is to clarify permissions:

• Commision User: Should view agents and Settlements. Are the responsible to tweak commissions (agents and amounts) on sale orders if necessary.
• Commission Manager: Full control.
• Salesman: Only can view commissions on it's own sales.
• Invoicing Commission group: Can invoice settlements and manage invoices (usually related with Accounting permissions).

Commits involved:

[FIX] sale_commission: Better look on Sale Commission Actions
This commit gives a better look to this group and buttons

[FIX] sale_commission: Commission Users can edit agent lines
This Commit is related to allow only to Commission Users the possibility to change or add new Agents to commissions

[FIX] account_commission: Action buttons available for Invoicing permissions
Actions on settlements are available for invocing users only (Commission Invoicing and Account Invoicing).

[FIX] commission: Cancel settlement button only available for group_commission_manager
Cancel button is visible for Commission Users, but clicking it throws an error.

MT-12373 @moduon @pedrobaeza @rafaelbn @yajo please review if you want 😄

[OCA-git-bot]

Hi @pedrobaeza,
some modules you are maintaining are being modified, check this out!

[yajo]

Code review.

Missing video or screenshots though.

[marcos-mendez]

Automated Review -- Tests Passed

All tests for account_commission,commission,sale_commission passed successfully on Odoo 16.0.
Environment: Minikube + K8s Job + oca-ci/py3.10-odoo16.0

---

⏰ This PR has been open for 51 days.

Every ignored PR is a contributor who might not come back. Review time matters. (OCA Aging Report)

---

Reciprocal Review Request

Hi everyone! Thanks for your contribution to OCA. I reviewed and approved this PR. If any of you have a moment, I would really appreciate a review on my open PR(s):

My open PRs across OCA:

• server-tools#3548 [18.0][MIG] base_kanban_stage: Migration to 18.0
• hr-attendance#262 [16.0][ADD] Hr_attendance_idsecure: iDSecure (ControliD) attendance integration
• stock-logistics-workflow#2276 [16.0][ADD] stock_move_line_devaluation
• stock-logistics-workflow#2275 [16.0][ADD] Stock move line analytic account
• stock-logistics-workflow#2268 [16.0][ADD] stock_move_line_picking_partner
• purchase-workflow#2694 [16.0][IMP]Purchase workflow added to review state & exception fix

Reviewing each other's work helps the whole community move forward faster. Thank you!

---

Automated review by OCA Neural Reviewer + qwen3-coder:30b

[OCA-git-bot]

This PR has the approved label and has been created more than 5 days ago. It should therefore be ready to merge by a maintainer (or a PSC member if the concerned addon has no declared maintainer). 🤖

[rafaelbn]

Helllo @pablo-cort-s73 could you please take a look? I guess you did the migration to 19 and maybe this will be a fordwardport. Thanks